**Core Concept**
Digoxin toxicity can manifest through various ECG changes due to its effect on the cardiac ion channels and the sodium-potassium pump. The drug interferes with the repolarization phase of the cardiac cycle, leading to alterations in the ECG.

**Why the Correct Answer is Right**
Digoxin toxicity is characterized by a range of ECG changes, including:
- Prolongation of the PR interval and QRS complex
- Atrioventricular (AV) block, including Mobitz I and II, and complete AV block
- Sinus bradycardia and junctional rhythms
- Prolongation of the QT interval
- ST segment depression and T wave inversion
The correct answer should reflect a change not typically associated with digoxin toxicity.

**Why Each Wrong Option is Incorrect**
**Option A:** Not provided
**Option B:** Not provided
**Option C:** Not provided
**Option D:** Not provided

**Clinical Pearl / High-Yield Fact**
A key ECG finding in digoxin toxicity is the presence of a "scooped" or "sagging" ST segment, which is often described as a "sagging" or "scooped" appearance in the mid-to-late portion of the ST segment.

**Correct Answer:** Not provided